Knee Flashcards
(20 cards)
Name the four muscles in the quadriceps
Vastus lateralis, vastus medialis, vastus intermedius, rectus femoris
Which muscle is the most superficial in quadriceps muscles?
Rectus femoris
Name the muscle group of the leg responsible for knee extension
Quadriceps muscles
Name the muscle group of the leg responsible for knee flexion
Hamstring muscles
Name the three hamstring msucles
Biceps femoris, semimembranosus muscle, semitendinosus muscle
Which muscle of the hamstring muscles are made up of the long head and the short head?
Biceps femoris
What is the common location where all three hamstring muscles connect to?
Tuberosity of ischium
Name the start and end position of semimembranosus muscle
Tuberosity of ischium, medial condyle of tibia
Name the start and end position of semitendinosus muscle
Tuberosity of ischium, medial surface of tibia
Name the start and end position of biceps femoris muscle
Long head: tuberosity of ischium, lateral condyle of tibia
Short head: lina aspera of femur, head of fibula
Longest muscle in the human body
Sartorius
What movement is sartorius and gracilis responsible for?
Knee flexion
Name the 3 calf muscles
Gastrocnemius, popliteus, soleus
Name the muscle responsible for plantar flex
Soleus
Name the muscle responsible for plantar flex AND knee flex
Gastrocnemius
Which muscle is responsible for main postero-lateral + internal rotation stabilizer?
Popliteus
Define osteoarthritis (OA)
Degenerative bone disease
Degeneration of articular/hyaline cartilage and SUBCHRONDAL BONE
Causes of OA
Mechanical stress + cartilage’s inability to regenerate
Abnormal stress can be caused by misalignment of bones due to congenital or pathogenic issues.
- Mechanical injury
- Excess body weight
- Loss of muscle strength supporting a joint
Term for unusually low bone density
Osteopenia
Osteopenia vs osteoperosis
Osteoperosis is more severe
